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User Manual
Merlin 3000S
Merlin
3000S
Demand Control Kitchen Ventilation System
INSTALLATION & OPERATION MANUAL
Please read these instructions carefully and retain for future use.
These instructions can be downloaded in electronic form on the product website (www.snsnorthern.com) or
a printed version can be ordered free of charge via S&S Northern Limited.
Iss: 10
Page 1
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Table of Contents
Related Manuals for S&S Northern Merlin 3000S
Summary of Contents for S&S Northern Merlin 3000S
- Page 1 User Manual Merlin 3000S Merlin 3000S Demand Control Kitchen Ventilation System INSTALLATION & OPERATION MANUAL Please read these instructions carefully and retain for future use. These instructions can be downloaded in electronic form on the product website (www.snsnorthern.com) or a printed version can be ordered free of charge via S&S Northern Limited.
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Page 2: Table Of Contents
User Manual Merlin 3000S Contents Important Information ............3 Installation ..............4 General Product Information ..................4 System Positioning ....................4 Electrical Connections ....................5 Access & Navigate Settings ................... 10 Settings Switch #1 Overview .................. 11 Settings Switch #2 Overview .................. 12 Duct Temperature vs 0-10V Fan Output .............. -
Page 3: Important Information
User Manual Merlin 3000S Important Information Warning Symbol Where this symbol is used, consult the manual to understand any potential hazards and how to avoid them. The information contained within this manual should be referenced for typical installation and operation only. -
Page 4: Installation
For the best and most accurate results, all should be used together but any combination of the 4 sensors can be used. As the CO2 or gas usage increases in the commercial kitchen, the Merlin 3000S will increase the speed of the ventilation system to provide the perfect cooking environment. Conversely, when only minimal gas is being used and the CO2 levels are low, the Merlin 3000S will reduce the speed of the ventilation systems, saving energy and money. -
Page 5: Electrical Connections
Merlin 3000S Electrical Connections POWER IN The Merlin 3000S requires an AC single phase power supply rating of 100-240V~ connected to [Power In] terminal using a 3A fuse spur. Frequency 50-60Hz. GAS VALVE 100-240V AC Power Output to a gas solenoid valve. Refer to the gas valve for more information. - Page 6 User Manual Merlin 3000S BMS OUT Terminals are available for Building Management Systems (BMS) to make or break a circuit (gas valve open or valve closed). Terminations: Normally Closed / Common / Normally Open. These are volt free connections. FAN ENABLE - Extract This terminal will switch when the key is turned on and off.
- Page 7 User Manual Merlin 3000S CO DETECTOR 12V DC Power [ + / - ] and [ ] can be wired to a Merlin Carbon Monoxide (CO) gas detector. If no detector is being used leave the link in between the “...
- Page 8 NOTE: TBX – Turbine Gas Meter has two types of pulse output – 'unit pulse' and 'high density pulse'. The Merlin 3000S requires a high-density pulse wire. FIRE PANEL The terminal for fire alarms is detailed on the circuit board as [FIRE PANEL]. These connections are linked out as a factory setting.
- Page 9 User Manual Merlin 3000S OPTICAL SENSOR (ZONE 1) The terminals detailed on the circuit board as [OPTICAL SENSOR] - [ + / - ] [ 1 / 2 ] are wired to the optical sensor (supplied separately). DUCT TEMP (ZONE 1) This is a low resistance connection to the duct temperature sensor to drive fans on an automatic varied speed based on extraction duct temperature levels.
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Page 10: Access & Navigate Settings
User Manual Merlin 3000S 0 -10V OUTPUT – Extract Fan The terminals for the 0-10VDC outputs are detailed on the circuit board as [EXTR. FAN] & [SUPP. FAN]. These connections are used to regulate external fan speed controllers (supplied separately) which can accept this control signal. -
Page 11: Settings Switch #1 Overview
When switched to ON, the 3000S will signal the BMS on any error fault, i.e., High CO2 or gas levels via detectors, Emergency shutoff activated, etc. The Merlin 3000S has a four (4) combination fire panel selection feature: FANS OFF - Extract & Supply fan OFF (default). -
Page 12: Settings Switch #2 Overview
Calibration can take up to 3 minutes. ➢ Whilst calibrating, the screen opposite will be displayed ➢ The Merlin 3000S will then confirm successful calibration GAS METER CALIBRATION If the system encounters a problem – the screen may display the following. -
Page 13: Duct Temperature Vs 0-10V Fan Output
The Merlin 3000S has a built-in fan speed control - ON/OFF feature. This can work as ENABLE N/O or N/C. SUPPLY FAN The Merlin 3000S has a built fan speed control - ON/OFF feature. This can work as N/O ENABLE or N/C. FACTORY All settings from the settings #2 menu can be restored to default. - Page 14 User Manual Merlin 3000S Temp (C°) Minimum Speed - 5V Volt Extract fan 0-10V out Supply fan 0-10V out From Up to (At minimum speed) (At minimum speed) <25 25.1 30.1 35.1 40.1 45.1 50.1 55.1 60.1 65.1 >73.1 10.0...
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Page 15: Operation
User Manual Merlin 3000S Operation Initial Power Up To turn the unit ON - Turn the key switch to ON position. When the system is connected to the mains electrical supply, the red dot of the S&S logo located on the bottom of the panel will illuminate. When no power is present, this LED will not illuminate. -
Page 16: Fan Boost Button
User Manual Merlin 3000S Fan Boost Button To boost the ventilation and prompt maximum fan speed - Press and Release the [Boost] button located on front fascia and the pre-selected boost time will display on screen. When boost time reaches zero, the fans will automatically return to normal operating mode. -
Page 17: Fault Status Screens
User Manual Merlin 3000S DUCT TEMPERATURE HIGH When the temperature in the extraction duct reaches or rises above 30°C, the fans will be driven at a speed dependant on the temperature. When the temperature in the extraction duct reaches or rises above 73°C, the warning screen will appear and the fans will be driven at maximum speed. -
Page 18: Maintenance
20 seconds - the gas, contactor and fans will all shut off. SOLID FUEL FEATURE PROTECTION The Merlin 3000S has a built-in solid fuel protection feature. When the system is switched off and the solid fuel protection is set to ON it will continue to instruct the system to check the CO Detector, CO Monitor &... -
Page 19: Technical Specification
User Manual Merlin 3000S Technical Specification General Model: Merlin 3000S Size: (H x W x D) 7.08 x 10.03 x 3” (180 x 255 x 77 mm) Housing Material: ABS Polylac - PA765 (Flame Rating UL94 V-1) Mounting: Indoor use - Wall Mounting Weight: 1.7kg (3.74lb) - Page 20 User Manual Merlin 3000S Installation Details Please pass this manual to the system owner / user. Date of Installation: Installation Location: Organisation: Stamp/Signature of the installer: Every effort is made to ensure the accuracy of this document; however, S&S Northern can assume no responsibility for any errors or omissions in this document or their consequences.